Mis adorables sobrinos

There was and still is an endearing quality about this show. You had an engineer who was suddenly thrust into the role of a bachelor father, supported by his gentleman's gentleman.

Note: When Sebastian Cabot was written off the show for a few episodes, John Williams stepped in and did an equally credible job of playing Mr. French's brother.

Note 2: It should be noted that two up-and-coming child performers made appearances on this show, Erin Moran and Eve Plumb, and nothing more need be said on the latter.